Seroatlas · Human Serome Atlas

HSF2

Heat shock factor protein 2

Also known as: HSF2_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q03933
Gene
HSF2
Ensembl
ENSG00000025156
Chromosome
6
Canonical length
536 aa
Protein class
Plasma proteins, Predicted intracellular proteins, Transcription factors
Subcellular location
Nucleoplasm
Quaternary structure
Homotrimer

OverviewNCBI Gene

The protein encoded by this gene belongs to the HSF family of transcription factors that bind specifically to the heat-shock promoter element and activate transcription. Heat shock transcription factors activate heat-shock response genes under conditions of heat or other stresses. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2011]

Canonical amino-acid sequenceUniProt

536 residues, UniProt reviewed canonical sequence.

>Q03933|HSF2
     1  MKQSSNVPAF LSKLWTLVEE THTNEFITWS QNGQSFLVLD EQRFAKEILP KYFKHNNMAS
    61  FVRQLNMYGF RKVVHIDSGI VKQERDGPVE FQHPYFKQGQ DDLLENIKRK VSSSKPEENK
   121  IRQEDLTKII SSAQKVQIKQ ETIESRLSEL KSENESLWKE VSELRAKHAQ QQQVIRKIVQ
   181  FIVTLVQNNQ LVSLKRKRPL LLNTNGAQKK NLFQHIVKEP TDNHHHKVPH SRTEGLKPRE
   241  RISDDIIIYD VTDDNADEEN IPVIPETNED VISDPSNCSQ YPDIVIVEDD NEDEYAPVIQ
   301  SGEQNEPARE SLSSGSDGSS PLMSSAVQLN GSSSLTSEDP VTMMDSILND NINLLGKVEL
   361  LDYLDSIDCS LEDFQAMLSG RQFSIDPDLL VDLFTSSVQM NPTDYINNTK SENKGLETTK
   421  NNVVQPVSEE GRKSKSKPDK QLIQYTAFPL LAFLDGNPAS SVEQASTTAS SEVLSSVDKP
   481  IEVDELLDSS LDPEPTQSKL VRLEPLTEAE ASEATLFYLC ELAPAPLDSD MPLLDS

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against HSF2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.59
Highest tissue expression
60 nTPM

Expression across tissuesHPA

Tissue

  • tongue: 60 nTPM
  • skeletal muscle: 47 nTPM
  • retina: 41 nTPM
  • testis: 35 nTPM
  • bone marrow: 28 nTPM
  • heart muscle: 22 nTPM

Single-cell type

  • thymic myoid cells: 133 nCPM
  • late primary spermatocytes: 121 nCPM
  • myonuclei: 102 nCPM
  • early primary spermatocytes: 101 nCPM
  • undifferentiated spermatogonia: 98 nCPM
  • differentiating spermatogonia: 82 nCPM

Immune cell

  • naive CD4 T-cell: 28 nTPM
  • naive CD8 T-cell: 22 nTPM
  • T-reg: 13 nTPM
  • MAIT T-cell: 13 nTPM
  • gdT-cell: 12 nTPM
  • total PBMC: 11 nTPM

Brain region

  • choroid plexus: 27 nTPM
  • cerebellum: 25 nTPM
  • white matter: 20 nTPM
  • hypothalamus: 20 nTPM
  • cerebral cortex: 19 nTPM
  • basal ganglia: 19 nTPM

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.32
gnomAD pLI
0.98
gnomAD missense Z
2.07
DepMap mean gene effect
-0.1
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of HSF2 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads HSF2 as an antibody target. Whether an autoantibody or antibody against HSF2 could matter depends on whether native HSF2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

HSF2 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label HSF2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/HSF2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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